Initial commit.1.0.0

Provide the basic functionality and an example for integration with
icinga2.

1 files changed, 26 insertions, 0 deletions

diff --git a/check_systemd b/check_systemd
new file mode 100755
index 0000000..c71682b
--- /dev/null
+++ b/check_systemd
@@ -0,0 +1,26 @@
+#!/bin/sh -e
+for line in $(systemctl show -p SystemState,NFailedUnits); do
+	split_idx="$(printf "%s" "$line" | awk '{print index($0, "=")}')"
+	property="$(printf "%s" "$line" | awk '{print substr($0, 1, '"$split_idx"' - 1)}')"
+	value="$(printf "%s" "$line" | awk '{print substr($0, '"$split_idx"' + 1)}')"
+
+	case "$property" in
+		"SystemState")
+			SYSTEM_STATE="$value"
+			;;
+		"NFailedUnits")
+			FAILED_UNITS="$value"
+			;;
+		*)
+			;;
+	esac
+done
+
+if [ -z "$SYSTEM_STATE" ] || [ -z "$FAILED_UNITS" ]; then
+	echo "$0: failed to get expected data from system." >&2
+	exit 3
+fi
+
+printf "SYSTEM %s: %d units failed.\n" "$SYSTEM_STATE" "$FAILED_UNITS"
+
+[ "0" = "$FAILED_UNITS" ] || exit 2